August ultramarathons in United States

Track-based ultra at Newport High School featuring 24-hour, 12-hour, and 50K distances, with 125 laps marking the 50K finish

Flat 3.75-mile paved loop at Cooper River Park with Philadelphia skyline and waterfront views, easy pit access, and some rubber track sections.

54K route on the 12-mile DORBA trail at Cedar Hill State Park, moderate to challenging terrain through forests and grasslands by Joe Pool Lake

Flat, shaded one-mile loops on palm- and oak-lined trails between river and ocean, nontechnical terrain showcasing old Florida hammock.

Mostly rail trail course connecting Belleville, WI to Orangeville, IL, passing through small towns and scenic stretches with frequent aid stations

Figure-eight loops on rugged mountain trails, wildflower fields and dense forests, panoramic coastal views, community gathering at the Mountain Field

Point-to-point 55K on the Waterloo-Pinckney Trail, passing swamps, meadows, lakes, and forests; finishes on a dirt road at Sandhill Crane Vineyards

Paved point-to-point road ultra from Hilo to Waimea, with major early climbing, a long descent, and a tough exposed Saddle Road course

100-mile lollipop-style mountain trail route, 17,700 feet of ascent and descent, varied Mt. Hood terrain, finish beneath the volcanic summit

Remote San Gabriel backcountry route through preserved wilderness, featuring picnic spots, campgrounds, and a demanding 100-mile ultrarunning course

Rugged single track and steep climbs in Green Mountain National Forest, with summit views of Lake Dunmore and over 5000 feet of elevation gain

Remote Alaskan ultramarathon with hard-packed trails, technical ridgelines, significant elevation change, wilderness views, and Chena Hot Springs finish

Non-technical 2.6-mile gravel loop around Lake Padden with 150 feet of elevation gain, winding through classic Pacific Northwest forest scenery.

Remote backcountry route through Montana’s Elkhorn Mountains with dramatic climbs, steep technical descents, rugged single track, and creek crossings

Marathon and 50-mile races through the scenic southern Sangre De Cristo mountains, finishing with a Tooth of Time Ridge descent to Base Camp in Cimarron

High-altitude courses over 10,600 feet, technical trails and remote forest service roads, striking mountain views, and challenging wilderness terrain

Looped 50k and 50 mile courses through Moorehead Park’s singletrack dirt and meadow trails, rolling hills, historic sites, and 1,000 feet of elevation gain per

Remote Mt. St. Helens loop on rugged Loowit Trail singletrack, with lava and pumice fields, river crossings, blast zone and forest.

Overnight run on a 1.5-mile paved loop around Smith Park, community-focused event in historic Middletown

Overnight 10-hour ultra with low elevation loops on Louisiana's swampy trails, featuring heat, humidity, roots, and frequent aid station access.